Polaris/evantage ebikes help!

Dsx6

100 µW
Joined
Jun 9, 2020
Messages
7
I recently acquired two polaris/evantage bikes without batteries and I understand that the line is discontinued and the batteries are no longer a available. I was wondering if anyone here may have any advice or experience with these bikes. The connector for the battery is unusual I beleive and I'm wondering if I could either splice in my own battery and controller or something. Just wanna get these back on the road!
 
Of course you can rebuild this bike better. Make it simple and robust. Better cells, bigger wires and connectors, programmable controller. Less gadget features and better quality components, are making a bike reliable and easy to maintain.
 
So I've learned that the motors have built in controllers and the batteries (I dont have) had communication boards on them. So it looks like unless I can find original batteries.. all the electronics are useless and I'm left with 2 frames which i can put kits on.
 
You can bypass the original controller and plug an external, much better controller. The original battery was sh*t anyway, so build or buy a good one made with the best cells. Now feed the motor the power that you like and, if you like a lot, fit a temp probe in the motor casing with its monitor on your handlebar.
 
Dont buy used ebikes without investigating first

If you could have found anything for Polarisevantage to begin with. Just a waste of a frame and motor investment. The motor and frame are the only salvageable parts because anything used like the battery is worthless when calculating value. And who knows about the controller.

Internal controllers
Internal batteries
are also a waste, added heat to those components and to the motor (heat from cont/batteries)

Always best to buy a kit, and throw a kit onto any bicycle.
 
Those are interesting looking bikes. Maybe some of the first sorta fat tyre eBikes? But....that frame has the battery mounted very high, so putting new batteries in there is going to give you a top heavy bike that will handle a little squirreley. The lower you can place the battery, the better.

Now this is just my opinion, but if it were me I'd punt. If you bought the bikes for a good price you should be able to get your money back on selling them, or at least most of it. Then either buy a nice entry level eBike for $600 or so, or get a better frame and put a motor kit on it. There's also this little bit of info regarding the electrics on those bikes
https://ebikemarketplace.com/blogs/news/polaris-e-bike-battery-replacement
 
MadRhino said:
You can bypass the original controller and plug an external, much better controller. The original battery was sh*t anyway, so build or buy a good one made with the best cells. Now feed the motor the power that you like and, if you like a lot, fit a temp probe in the motor casing with its monitor on your handlebar.

I'd like to bypass the controller and use the motor with my own but the controller is built into the hub motor so if I can it's going to be difficult
 
markz said:
Dont buy used ebikes without investigating first

If you could have found anything for Polarisevantage to begin with. Just a waste of a frame and motor investment. The motor and frame are the only salvageable parts because anything used like the battery is worthless when calculating value. And who knows about the controller.

Internal controllers
Internal batteries
are also a waste, added heat to those components and to the motor (heat from cont/batteries)

Always best to buy a kit, and throw a kit onto any bicycle.



The bikes were brand new just missing batteries but I agree I should have researched more before buying. And unfortunately for me, I dont even think the motors are salvageable do to the controller being build into them and the power/comunication board being built into the battery.

I got both bikes new without batteries for 500 but not its looking like I ended up with 2 frames for 500.
 
Dsx6 said:
I'd like to bypass the controller and use the motor with my own but the controller is built into the hub motor so if I can it's going to be difficult
There's a number of threads around the forum that show how to take internal controllers out of various motors (leaf, magicpie, ultramotor, stromer, a2b, etc) and install phase and hall wires to run to the outside to use with an external controller. Some of them are titled as such, and some are buried within build or troubleshooting threads.
 
Perhaps this is too simplistic (I rode a Polaris at an expo several years ago - can't remember the battery configuration). Are there positive and negative wires emanating from the controller that you could put connectors on and hook up to a battery?
 
amberwolf said:
Dsx6 said:
I'd like to bypass the controller and use the motor with my own but the controller is built into the hub motor so if I can it's going to be difficult
There's a number of threads around the forum that show how to take internal controllers out of various motors (leaf, magicpie, ultramotor, stromer, a2b, etc) and install phase and hall wires to run to the outside to use with an external controller. Some of them are titled as such, and some are buried within build or troubleshooting threads.


This is good to know. I will be looking into that. Ty
 
I would take the internal out, buy a sensorless controller and hopefully you have a hollow axle to route the phase wires through.
 
markz said:
I would take the internal out, buy a sensorless controller and hopefully you have a hollow axle to route the phase wires through.

So your saying to disassemble the motor and find the phase wires and bypass or remove the internal? Because that's what I would like to do but I dont have any exp with this
 
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